Evolutionary trajectory of the galaxy we have chosen in terms of its half-mass radius, R_1/2, growth. Each solid line corresponds to a specific galaxy, color-coded according to ΔR_1/2. The bold solid lines and shaded areas indicate the median and the 1σ variation for compact (red), normal (green), and extended (blue) galaxies. The galaxies are categorized into M1–M4 from left to right. Vertical dashed lines are the time at a redshift of z = 2.